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Commit | Line | Data |
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91c84a35 MS |
1 | /* |
2 | * "$Id$" | |
3 | * | |
4 | * SNMP functions for the Common UNIX Printing System (CUPS). | |
5 | * | |
6 | * Copyright 2007-2008 by Apple Inc. | |
7 | * Copyright 2006-2007 by Easy Software Products, all rights reserved. | |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * "LICENSE" which should have been included with this file. If this | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
14 | * | |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
7a14d768 MS |
19 | * _cupsSNMPClose() - Close a SNMP socket. |
20 | * _cupsSNMPCopyOID() - Copy an OID. | |
21 | * _cupsSNMPDefaultCommunity() - Get the default SNMP community name. | |
22 | * _cupsSNMPIsOID() - Test whether a SNMP response contains the | |
23 | * specified OID. | |
24 | * _cupsSNMPIsOIDPrefixed() - Test whether a SNMP response uses the | |
25 | * specified OID prefix. | |
20fbc903 | 26 | * _cupsSNMPOIDToString() - Convert an OID to a string. |
7a14d768 MS |
27 | * _cupsSNMPOpen() - Open a SNMP socket. |
28 | * _cupsSNMPRead() - Read and parse a SNMP response. | |
29 | * _cupsSNMPSetDebug() - Enable/disable debug logging to stderr. | |
20fbc903 | 30 | * _cupsSNMPStringToOID() - Convert a numeric OID string to an OID array. |
7a14d768 MS |
31 | * _cupsSNMPWalk() - Enumerate a group of OIDs. |
32 | * _cupsSNMPWrite() - Send an SNMP query packet. | |
33 | * asn1_debug() - Decode an ASN1-encoded message. | |
34 | * asn1_decode_snmp() - Decode a SNMP packet. | |
35 | * asn1_encode_snmp() - Encode a SNMP packet. | |
36 | * asn1_get_integer() - Get an integer value. | |
37 | * asn1_get_length() - Get a value length. | |
38 | * asn1_get_oid() - Get an OID value. | |
39 | * asn1_get_packed() - Get a packed integer value. | |
40 | * asn1_get_string() - Get a string value. | |
41 | * asn1_get_type() - Get a value type. | |
42 | * asn1_set_integer() - Set an integer value. | |
43 | * asn1_set_length() - Set a value length. | |
44 | * asn1_set_oid() - Set an OID value. | |
45 | * asn1_set_packed() - Set a packed integer value. | |
46 | * asn1_size_integer() - Figure out the number of bytes needed for an | |
47 | * integer value. | |
48 | * asn1_size_length() - Figure out the number of bytes needed for a | |
49 | * length value. | |
50 | * asn1_size_oid() - Figure out the numebr of bytes needed for an | |
51 | * OID value. | |
52 | * asn1_size_packed() - Figure out the number of bytes needed for a | |
53 | * packed integer value. | |
54 | * snmp_set_error() - Set the localized error for a packet. | |
91c84a35 MS |
55 | */ |
56 | ||
57 | /* | |
58 | * Include necessary headers. | |
59 | */ | |
60 | ||
61 | #include "globals.h" | |
969307f0 | 62 | #include "debug.h" |
7a14d768 | 63 | #include "snmp-private.h" |
91c84a35 MS |
64 | #include <errno.h> |
65 | #ifdef HAVE_POLL | |
66 | # include <sys/poll.h> | |
67 | #endif /* HAVE_POLL */ | |
68 | ||
69 | ||
70 | /* | |
71 | * Local functions... | |
72 | */ | |
73 | ||
91c84a35 MS |
74 | static void asn1_debug(const char *prefix, unsigned char *buffer, |
75 | size_t len, int indent); | |
ac884b6a MS |
76 | static int asn1_decode_snmp(unsigned char *buffer, size_t len, |
77 | cups_snmp_t *packet); | |
91c84a35 MS |
78 | static int asn1_encode_snmp(unsigned char *buffer, size_t len, |
79 | cups_snmp_t *packet); | |
80 | static int asn1_get_integer(unsigned char **buffer, | |
81 | unsigned char *bufend, | |
82 | int length); | |
83 | static int asn1_get_oid(unsigned char **buffer, | |
84 | unsigned char *bufend, | |
85 | int length, int *oid, int oidsize); | |
86 | static int asn1_get_packed(unsigned char **buffer, | |
87 | unsigned char *bufend); | |
88 | static char *asn1_get_string(unsigned char **buffer, | |
89 | unsigned char *bufend, | |
90 | int length, char *string, | |
91 | int strsize); | |
92 | static int asn1_get_length(unsigned char **buffer, | |
93 | unsigned char *bufend); | |
94 | static int asn1_get_type(unsigned char **buffer, | |
95 | unsigned char *bufend); | |
96 | static void asn1_set_integer(unsigned char **buffer, | |
97 | int integer); | |
98 | static void asn1_set_length(unsigned char **buffer, | |
99 | int length); | |
100 | static void asn1_set_oid(unsigned char **buffer, | |
101 | const int *oid); | |
102 | static void asn1_set_packed(unsigned char **buffer, | |
103 | int integer); | |
104 | static int asn1_size_integer(int integer); | |
105 | static int asn1_size_length(int length); | |
106 | static int asn1_size_oid(const int *oid); | |
107 | static int asn1_size_packed(int integer); | |
108 | static void snmp_set_error(cups_snmp_t *packet, | |
109 | const char *message); | |
110 | ||
111 | ||
112 | /* | |
7a14d768 | 113 | * '_cupsSNMPClose()' - Close a SNMP socket. |
91c84a35 MS |
114 | * |
115 | * @since CUPS 1.4@ | |
116 | */ | |
117 | ||
118 | void | |
7a14d768 | 119 | _cupsSNMPClose(int fd) /* I - SNMP socket file descriptor */ |
91c84a35 | 120 | { |
969307f0 MS |
121 | DEBUG_printf(("_cupsSNMPClose(fd=%d)\n", fd)); |
122 | ||
91c84a35 MS |
123 | #ifdef WIN32 |
124 | closesocket(fd); | |
125 | #else | |
126 | close(fd); | |
127 | #endif /* WIN32 */ | |
128 | } | |
129 | ||
130 | ||
131 | /* | |
7a14d768 | 132 | * '_cupsSNMPCopyOID()' - Copy an OID. |
ac884b6a MS |
133 | * |
134 | * The array pointed to by "src" is terminated by the value -1. | |
135 | * | |
136 | * @since CUPS 1.4@ | |
91c84a35 MS |
137 | */ |
138 | ||
139 | int * /* O - New OID */ | |
7a14d768 MS |
140 | _cupsSNMPCopyOID(int *dst, /* I - Destination OID */ |
141 | const int *src, /* I - Source OID */ | |
142 | int dstsize) /* I - Number of integers in dst */ | |
91c84a35 MS |
143 | { |
144 | int i; /* Looping var */ | |
145 | ||
146 | ||
969307f0 MS |
147 | DEBUG_printf(("_cupsSNMPCopyOID(dst=%p, src=%p, dstsize=%d)\n", dst, src, |
148 | dstsize)); | |
149 | ||
ac884b6a | 150 | for (i = 0, dstsize --; src[i] >= 0 && i < dstsize; i ++) |
91c84a35 MS |
151 | dst[i] = src[i]; |
152 | ||
ac884b6a | 153 | dst[i] = -1; |
91c84a35 MS |
154 | |
155 | return (dst); | |
156 | } | |
157 | ||
158 | ||
ac884b6a | 159 | /* |
7a14d768 | 160 | * '_cupsSNMPDefaultCommunity()' - Get the default SNMP community name. |
ac884b6a MS |
161 | * |
162 | * The default community name is the first community name found in the | |
163 | * snmp.conf file. If no community name is defined there, "public" is used. | |
164 | * | |
165 | * @since CUPS 1.4@ | |
166 | */ | |
167 | ||
168 | const char * /* O - Default community name */ | |
7a14d768 | 169 | _cupsSNMPDefaultCommunity(void) |
ac884b6a MS |
170 | { |
171 | cups_file_t *fp; /* snmp.conf file */ | |
172 | char line[1024], /* Line from file */ | |
173 | *value; /* Value from file */ | |
174 | int linenum; /* Line number in file */ | |
175 | _cups_globals_t *cg = _cupsGlobals(); /* Global data */ | |
176 | ||
177 | ||
969307f0 MS |
178 | DEBUG_puts("_cupsSNMPDefaultCommunity()"); |
179 | ||
ac884b6a MS |
180 | if (!cg->snmp_community[0]) |
181 | { | |
182 | strlcpy(cg->snmp_community, "public", sizeof(cg->snmp_community)); | |
183 | ||
184 | snprintf(line, sizeof(line), "%s/snmp.conf", cg->cups_serverroot); | |
185 | if ((fp = cupsFileOpen(line, "r")) != NULL) | |
186 | { | |
187 | linenum = 0; | |
188 | while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum)) | |
189 | if (!strcasecmp(line, "Community") && value) | |
190 | { | |
191 | strlcpy(cg->snmp_community, value, sizeof(cg->snmp_community)); | |
192 | break; | |
193 | } | |
194 | ||
195 | cupsFileClose(fp); | |
196 | } | |
197 | } | |
198 | ||
969307f0 MS |
199 | DEBUG_printf(("_cupsSNMPDefaultCommunity: Returning \"%s\"\n", |
200 | cg->snmp_community)); | |
201 | ||
ac884b6a MS |
202 | return (cg->snmp_community); |
203 | } | |
204 | ||
205 | ||
91c84a35 | 206 | /* |
7a14d768 | 207 | * '_cupsSNMPIsOID()' - Test whether a SNMP response contains the specified OID. |
91c84a35 | 208 | * |
ac884b6a | 209 | * The array pointed to by "oid" is terminated by the value -1. |
91c84a35 MS |
210 | * |
211 | * @since CUPS 1.4@ | |
212 | */ | |
213 | ||
214 | int /* O - 1 if equal, 0 if not equal */ | |
7a14d768 MS |
215 | _cupsSNMPIsOID(cups_snmp_t *packet, /* I - Response packet */ |
216 | const int *oid) /* I - OID */ | |
91c84a35 MS |
217 | { |
218 | int i; /* Looping var */ | |
219 | ||
220 | ||
221 | /* | |
222 | * Range check input... | |
223 | */ | |
224 | ||
969307f0 MS |
225 | DEBUG_printf(("_cupsSNMPIsOID(packet=%p, oid=%p)\n", packet, oid)); |
226 | ||
91c84a35 | 227 | if (!packet || !oid) |
969307f0 MS |
228 | { |
229 | DEBUG_puts("_cupsSNMPIsOID: Returning 0"); | |
230 | ||
91c84a35 | 231 | return (0); |
969307f0 | 232 | } |
91c84a35 MS |
233 | |
234 | /* | |
235 | * Compare OIDs... | |
236 | */ | |
237 | ||
ac884b6a MS |
238 | for (i = 0; |
239 | i < CUPS_SNMP_MAX_OID && oid[i] >= 0 && packet->object_name[i] >= 0; | |
240 | i ++) | |
91c84a35 | 241 | if (oid[i] != packet->object_name[i]) |
969307f0 MS |
242 | { |
243 | DEBUG_puts("_cupsSNMPIsOID: Returning 0"); | |
244 | ||
91c84a35 | 245 | return (0); |
969307f0 MS |
246 | } |
247 | ||
248 | DEBUG_printf(("_cupsSNMPIsOID: Returning %d\n", | |
249 | i < CUPS_SNMP_MAX_OID && oid[i] == packet->object_name[i])); | |
91c84a35 MS |
250 | |
251 | return (i < CUPS_SNMP_MAX_OID && oid[i] == packet->object_name[i]); | |
252 | } | |
253 | ||
254 | ||
255 | /* | |
7a14d768 MS |
256 | * '_cupsSNMPIsOIDPrefixed()' - Test whether a SNMP response uses the specified |
257 | * OID prefix. | |
91c84a35 | 258 | * |
ac884b6a | 259 | * The array pointed to by "prefix" is terminated by the value -1. |
91c84a35 MS |
260 | * |
261 | * @since CUPS 1.4@ | |
262 | */ | |
263 | ||
264 | int /* O - 1 if prefixed, 0 if not prefixed */ | |
7a14d768 | 265 | _cupsSNMPIsOIDPrefixed( |
91c84a35 MS |
266 | cups_snmp_t *packet, /* I - Response packet */ |
267 | const int *prefix) /* I - OID prefix */ | |
268 | { | |
269 | int i; /* Looping var */ | |
270 | ||
271 | ||
272 | /* | |
273 | * Range check input... | |
274 | */ | |
275 | ||
969307f0 MS |
276 | DEBUG_printf(("_cupsSNMPIsOIDPrefixed(packet=%p, prefix=%p)\n", packet, |
277 | prefix)); | |
278 | ||
91c84a35 | 279 | if (!packet || !prefix) |
969307f0 MS |
280 | { |
281 | DEBUG_puts("_cupsSNMPIsOIDPrefixed: Returning 0"); | |
282 | ||
91c84a35 | 283 | return (0); |
969307f0 | 284 | } |
91c84a35 MS |
285 | |
286 | /* | |
287 | * Compare OIDs... | |
288 | */ | |
289 | ||
290 | for (i = 0; | |
ac884b6a | 291 | i < CUPS_SNMP_MAX_OID && prefix[i] >= 0 && packet->object_name[i] >= 0; |
91c84a35 MS |
292 | i ++) |
293 | if (prefix[i] != packet->object_name[i]) | |
969307f0 MS |
294 | { |
295 | DEBUG_puts("_cupsSNMPIsOIDPrefixed: Returning 0"); | |
296 | ||
91c84a35 | 297 | return (0); |
969307f0 MS |
298 | } |
299 | ||
300 | DEBUG_printf(("_cupsSNMPIsOIDPrefixed: Returning %d\n", | |
301 | i < CUPS_SNMP_MAX_OID)); | |
91c84a35 MS |
302 | |
303 | return (i < CUPS_SNMP_MAX_OID); | |
304 | } | |
305 | ||
306 | ||
20fbc903 MS |
307 | /* |
308 | * '_cupsSNMPOIDToString()' - Convert an OID to a string. | |
309 | * | |
310 | * @since CUPS 1.4@ | |
311 | */ | |
312 | ||
313 | ||
314 | char * /* O - New string or @code NULL@ on error */ | |
315 | _cupsSNMPOIDToString(const int *src, /* I - OID */ | |
316 | char *dst, /* I - String buffer */ | |
317 | size_t dstsize) /* I - Size of string buffer */ | |
318 | { | |
319 | char *dstptr, /* Pointer into string buffer */ | |
320 | *dstend; /* End of string buffer */ | |
321 | ||
322 | ||
323 | DEBUG_printf(("_cupsSNMPOIDToString(src=%p, dst=%p, dstsize=" CUPS_LLFMT ")\n", | |
324 | src, dst, CUPS_LLCAST dstsize)); | |
325 | ||
326 | /* | |
327 | * Range check input... | |
328 | */ | |
329 | ||
330 | if (!src || !dst || dstsize < 4) | |
331 | return (NULL); | |
332 | ||
333 | /* | |
334 | * Loop through the OID array and build a string... | |
335 | */ | |
336 | ||
337 | for (dstptr = dst, dstend = dstptr + dstsize - 1; | |
338 | *src >= 0 && dstptr < dstend; | |
339 | src ++, dstptr += strlen(dstptr)) | |
340 | snprintf(dstptr, dstend - dstptr + 1, ".%d", *src); | |
341 | ||
342 | if (*src >= 0) | |
343 | return (NULL); | |
344 | else | |
345 | return (dst); | |
346 | } | |
347 | ||
348 | ||
91c84a35 | 349 | /* |
7a14d768 | 350 | * '_cupsSNMPOpen()' - Open a SNMP socket. |
91c84a35 MS |
351 | * |
352 | * @since CUPS 1.4@ | |
353 | */ | |
354 | ||
355 | int /* O - SNMP socket file descriptor */ | |
7a14d768 | 356 | _cupsSNMPOpen(int family) /* I - Address family - @code AF_INET@ or @code AF_INET6@ */ |
91c84a35 MS |
357 | { |
358 | int fd; /* SNMP socket file descriptor */ | |
359 | int val; /* Socket option value */ | |
360 | ||
361 | ||
362 | /* | |
363 | * Create the SNMP socket... | |
364 | */ | |
365 | ||
969307f0 MS |
366 | DEBUG_printf(("_cupsSNMPOpen(family=%d)\n", family)); |
367 | ||
ac884b6a | 368 | if ((fd = socket(family, SOCK_DGRAM, 0)) < 0) |
969307f0 MS |
369 | { |
370 | DEBUG_printf(("_cupsSNMPOpen: Returning -1 (%s)\n", strerror(errno))); | |
371 | ||
91c84a35 | 372 | return (-1); |
969307f0 | 373 | } |
91c84a35 MS |
374 | |
375 | /* | |
376 | * Set the "broadcast" flag... | |
377 | */ | |
378 | ||
379 | val = 1; | |
380 | ||
381 | if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &val, sizeof(val))) | |
382 | { | |
969307f0 MS |
383 | DEBUG_printf(("_cupsSNMPOpen: Returning -1 (%s)\n", strerror(errno))); |
384 | ||
91c84a35 MS |
385 | close(fd); |
386 | ||
387 | return (-1); | |
388 | } | |
389 | ||
969307f0 MS |
390 | DEBUG_printf(("_cupsSNMPOpen: Returning %d\n", fd)); |
391 | ||
91c84a35 MS |
392 | return (fd); |
393 | } | |
394 | ||
395 | ||
396 | /* | |
7a14d768 | 397 | * '_cupsSNMPRead()' - Read and parse a SNMP response. |
91c84a35 | 398 | * |
7a14d768 | 399 | * If "timeout" is negative, @code _cupsSNMPRead@ will wait for a response |
91c84a35 MS |
400 | * indefinitely. |
401 | * | |
402 | * @since CUPS 1.4@ | |
403 | */ | |
404 | ||
ac884b6a | 405 | cups_snmp_t * /* O - SNMP packet or @code NULL@ if none */ |
7a14d768 | 406 | _cupsSNMPRead(int fd, /* I - SNMP socket file descriptor */ |
969307f0 MS |
407 | cups_snmp_t *packet, /* I - SNMP packet buffer */ |
408 | double timeout) /* I - Timeout in seconds */ | |
91c84a35 MS |
409 | { |
410 | unsigned char buffer[CUPS_SNMP_MAX_PACKET]; | |
411 | /* Data packet */ | |
412 | int bytes; /* Number of bytes received */ | |
413 | socklen_t addrlen; /* Source address length */ | |
ac884b6a | 414 | http_addr_t address; /* Source address */ |
91c84a35 MS |
415 | |
416 | ||
417 | /* | |
418 | * Range check input... | |
419 | */ | |
420 | ||
969307f0 MS |
421 | DEBUG_printf(("_cupsSNMPRead(fd=%d, packet=%p, timeout=%.1f)\n", fd, packet, |
422 | timeout)); | |
423 | ||
91c84a35 | 424 | if (fd < 0 || !packet) |
969307f0 MS |
425 | { |
426 | DEBUG_puts("_cupsSNMPRead: Returning NULL"); | |
427 | ||
91c84a35 | 428 | return (NULL); |
969307f0 | 429 | } |
91c84a35 MS |
430 | |
431 | /* | |
432 | * Optionally wait for a response... | |
433 | */ | |
434 | ||
568fa3fa | 435 | if (timeout >= 0.0) |
91c84a35 MS |
436 | { |
437 | int ready; /* Data ready on socket? */ | |
438 | #ifdef HAVE_POLL | |
439 | struct pollfd pfd; /* Polled file descriptor */ | |
440 | ||
441 | pfd.fd = fd; | |
442 | pfd.events = POLLIN; | |
443 | ||
568fa3fa MS |
444 | while ((ready = poll(&pfd, 1, (int)(timeout * 1000.0))) < 0 && |
445 | errno == EINTR); | |
91c84a35 MS |
446 | |
447 | #else | |
448 | fd_set input_set; /* select() input set */ | |
568fa3fa | 449 | struct timeval stimeout; /* select() timeout */ |
91c84a35 MS |
450 | |
451 | do | |
452 | { | |
453 | FD_ZERO(&input_set); | |
454 | FD_SET(fd, &input_set); | |
455 | ||
568fa3fa MS |
456 | stimeout.tv_sec = (int)timeout; |
457 | stimeout.tv_usec = (int)((timeout - stimeout.tv_usec) * 1000000); | |
91c84a35 | 458 | |
568fa3fa | 459 | ready = select(fd + 1, &input_set, NULL, NULL, &stimeout); |
91c84a35 MS |
460 | } |
461 | # ifdef WIN32 | |
462 | while (ready < 0 && WSAGetLastError() == WSAEINTR); | |
463 | # else | |
464 | while (ready < 0 && errno == EINTR); | |
465 | # endif /* WIN32 */ | |
466 | #endif /* HAVE_POLL */ | |
467 | ||
468 | /* | |
469 | * If we don't have any data ready, return right away... | |
470 | */ | |
471 | ||
472 | if (ready <= 0) | |
969307f0 MS |
473 | { |
474 | DEBUG_puts("_cupsSNMPRead: Returning NULL (timeout)"); | |
475 | ||
91c84a35 | 476 | return (NULL); |
969307f0 | 477 | } |
91c84a35 MS |
478 | } |
479 | ||
480 | /* | |
481 | * Read the response data... | |
482 | */ | |
483 | ||
ac884b6a | 484 | addrlen = sizeof(address); |
91c84a35 | 485 | |
ac884b6a MS |
486 | if ((bytes = recvfrom(fd, buffer, sizeof(buffer), 0, (void *)&address, |
487 | &addrlen)) < 0) | |
969307f0 MS |
488 | { |
489 | DEBUG_printf(("_cupsSNMPRead: Returning NULL (%s)\n", strerror(errno))); | |
490 | ||
91c84a35 | 491 | return (NULL); |
969307f0 | 492 | } |
91c84a35 MS |
493 | |
494 | /* | |
495 | * Look for the response status code in the SNMP message header... | |
496 | */ | |
497 | ||
498 | asn1_debug("DEBUG: IN ", buffer, bytes, 0); | |
499 | ||
500 | asn1_decode_snmp(buffer, bytes, packet); | |
501 | ||
ac884b6a MS |
502 | memcpy(&(packet->address), &address, sizeof(packet->address)); |
503 | ||
91c84a35 MS |
504 | /* |
505 | * Return decoded data packet... | |
506 | */ | |
507 | ||
969307f0 MS |
508 | DEBUG_puts("_cupsSNMPRead: Returning packet"); |
509 | ||
91c84a35 MS |
510 | return (packet); |
511 | } | |
512 | ||
513 | ||
514 | /* | |
7a14d768 | 515 | * '_cupsSNMPSetDebug()' - Enable/disable debug logging to stderr. |
91c84a35 MS |
516 | * |
517 | * @since CUPS 1.4@ | |
518 | */ | |
519 | ||
520 | void | |
7a14d768 | 521 | _cupsSNMPSetDebug(int level) /* I - 1 to enable debug output, 0 otherwise */ |
91c84a35 MS |
522 | { |
523 | _cups_globals_t *cg = _cupsGlobals(); /* Global data */ | |
524 | ||
525 | ||
969307f0 MS |
526 | DEBUG_printf(("_cupsSNMPSetDebug(level=%d)\n", level)); |
527 | ||
91c84a35 MS |
528 | cg->snmp_debug = level; |
529 | } | |
530 | ||
531 | ||
20fbc903 MS |
532 | /* |
533 | * '_cupsSNMPStringToOID()' - Convert a numeric OID string to an OID array. | |
534 | * | |
535 | * This function converts a string of the form ".N.N.N.N.N" to the | |
536 | * corresponding OID array terminated by -1. | |
537 | * | |
538 | * @code NULL@ is returned if the array is not large enough or the string is | |
539 | * not a valid OID number. | |
540 | * | |
541 | * @since CUPS 1.4@ | |
542 | */ | |
543 | ||
544 | int * /* O - Pointer to OID array or @code NULL@ on error */ | |
545 | _cupsSNMPStringToOID(const char *src, /* I - OID string */ | |
546 | int *dst, /* I - OID array */ | |
547 | int dstsize)/* I - Number of integers in OID array */ | |
548 | { | |
549 | int *dstptr, /* Pointer into OID array */ | |
550 | *dstend; /* End of OID array */ | |
551 | ||
552 | ||
553 | DEBUG_printf(("_cupsSNMPStringToOID(src=\"%s\", dst=%p, dstsize=%d)\n", | |
554 | src, dst, dstsize)); | |
555 | ||
556 | /* | |
557 | * Range check input... | |
558 | */ | |
559 | ||
560 | if (!src || !dst || dstsize < 2) | |
561 | return (NULL); | |
562 | ||
563 | /* | |
564 | * Skip leading "."... | |
565 | */ | |
566 | ||
567 | if (*src == '.') | |
568 | src ++; | |
569 | ||
570 | /* | |
571 | * Loop to the end of the string... | |
572 | */ | |
573 | ||
574 | for (dstend = dst + dstsize - 1, dstptr = dst, *dstptr = 0; | |
575 | *src && dstptr < dstend; | |
576 | src ++) | |
577 | { | |
578 | if (*src == '.') | |
579 | { | |
580 | dstptr ++; | |
581 | *dstptr = 0; | |
582 | } | |
583 | else if (isdigit(*src & 255)) | |
584 | *dstptr = *dstptr * 10 + *src - '0'; | |
585 | else | |
586 | break; | |
587 | } | |
588 | ||
589 | if (*src) | |
590 | return (NULL); | |
591 | ||
592 | /* | |
593 | * Terminate the end of the OID array and return... | |
594 | */ | |
595 | ||
596 | dstptr[1] = -1; | |
597 | ||
598 | return (dst); | |
599 | } | |
600 | ||
601 | ||
ac884b6a | 602 | /* |
7a14d768 | 603 | * '_cupsSNMPWalk()' - Enumerate a group of OIDs. |
ac884b6a MS |
604 | * |
605 | * This function queries all of the OIDs with the specified OID prefix, | |
606 | * calling the "cb" function for every response that is received. | |
607 | * | |
608 | * The array pointed to by "prefix" is terminated by the value -1. | |
609 | * | |
7a14d768 | 610 | * If "timeout" is negative, @code _cupsSNMPWalk@ will wait for a response |
568fa3fa MS |
611 | * indefinitely. |
612 | * | |
ac884b6a MS |
613 | * @since CUPS 1.4@ |
614 | */ | |
615 | ||
616 | int /* O - Number of OIDs found or -1 on error */ | |
7a14d768 MS |
617 | _cupsSNMPWalk(int fd, /* I - SNMP socket */ |
618 | http_addr_t *address, /* I - Address to query */ | |
619 | int version, /* I - SNMP version */ | |
620 | const char *community,/* I - Community name */ | |
621 | const int *prefix, /* I - OID prefix */ | |
622 | double timeout, /* I - Timeout for each response in seconds */ | |
623 | cups_snmp_cb_t cb, /* I - Function to call for each response */ | |
624 | void *data) /* I - User data pointer that is passed to the callback function */ | |
ac884b6a MS |
625 | { |
626 | int count = 0; /* Number of OIDs found */ | |
627 | int request_id = 0; /* Current request ID */ | |
628 | cups_snmp_t packet; /* Current response packet */ | |
629 | ||
630 | ||
631 | /* | |
632 | * Range check input... | |
633 | */ | |
634 | ||
969307f0 MS |
635 | DEBUG_printf(("_cupsSNMPWalk(fd=%d, address=%p, version=%d, " |
636 | "community=\"%s\", prefix=%p, timeout=%.1f, cb=%p, data=%p)\n", | |
637 | fd, address, version, community ? community : "(null)", | |
638 | prefix, timeout, cb, data)); | |
639 | ||
ac884b6a MS |
640 | if (fd < 0 || !address || version != CUPS_SNMP_VERSION_1 || !community || |
641 | !prefix || !cb) | |
969307f0 MS |
642 | { |
643 | DEBUG_puts("_cupsSNMPWalk: Returning -1"); | |
644 | ||
ac884b6a | 645 | return (-1); |
969307f0 | 646 | } |
ac884b6a MS |
647 | |
648 | /* | |
649 | * Copy the OID prefix and then loop until we have no more OIDs... | |
650 | */ | |
651 | ||
7a14d768 | 652 | _cupsSNMPCopyOID(packet.object_name, prefix, CUPS_SNMP_MAX_OID); |
ac884b6a MS |
653 | |
654 | for (;;) | |
655 | { | |
656 | request_id ++; | |
657 | ||
7a14d768 | 658 | if (!_cupsSNMPWrite(fd, address, version, community, |
ac884b6a MS |
659 | CUPS_ASN1_GET_NEXT_REQUEST, request_id, |
660 | packet.object_name)) | |
969307f0 MS |
661 | { |
662 | DEBUG_puts("_cupsSNMPWalk: Returning -1"); | |
663 | ||
ac884b6a | 664 | return (-1); |
969307f0 | 665 | } |
ac884b6a | 666 | |
7a14d768 | 667 | if (!_cupsSNMPRead(fd, &packet, timeout)) |
969307f0 MS |
668 | { |
669 | DEBUG_puts("_cupsSNMPWalk: Returning -1"); | |
670 | ||
ac884b6a | 671 | return (-1); |
969307f0 | 672 | } |
ac884b6a | 673 | |
7a14d768 | 674 | if (!_cupsSNMPIsOIDPrefixed(&packet, prefix)) |
969307f0 MS |
675 | { |
676 | DEBUG_printf(("_cupsSNMPWalk: Returning %d\n", count)); | |
677 | ||
ac884b6a | 678 | return (count); |
969307f0 | 679 | } |
ac884b6a MS |
680 | |
681 | if (packet.error || packet.error_status) | |
969307f0 MS |
682 | { |
683 | DEBUG_printf(("_cupsSNMPWalk: Returning %d\n", count > 0 ? count : -1)); | |
684 | ||
ac884b6a | 685 | return (count > 0 ? count : -1); |
969307f0 | 686 | } |
ac884b6a MS |
687 | |
688 | count ++; | |
689 | ||
690 | (*cb)(&packet, data); | |
691 | } | |
692 | } | |
693 | ||
694 | ||
91c84a35 | 695 | /* |
7a14d768 | 696 | * '_cupsSNMPWrite()' - Send an SNMP query packet. |
91c84a35 | 697 | * |
ac884b6a | 698 | * The array pointed to by "oid" is terminated by the value -1. |
91c84a35 MS |
699 | * |
700 | * @since CUPS 1.4@ | |
701 | */ | |
702 | ||
703 | int /* O - 1 on success, 0 on error */ | |
7a14d768 | 704 | _cupsSNMPWrite( |
91c84a35 MS |
705 | int fd, /* I - SNMP socket */ |
706 | http_addr_t *address, /* I - Address to send to */ | |
707 | int version, /* I - SNMP version */ | |
708 | const char *community, /* I - Community name */ | |
709 | cups_asn1_t request_type, /* I - Request type */ | |
710 | const unsigned request_id, /* I - Request ID */ | |
711 | const int *oid) /* I - OID */ | |
712 | { | |
713 | int i; /* Looping var */ | |
714 | cups_snmp_t packet; /* SNMP message packet */ | |
715 | unsigned char buffer[CUPS_SNMP_MAX_PACKET]; | |
716 | /* SNMP message buffer */ | |
717 | int bytes; /* Size of message */ | |
718 | ||
719 | ||
ac884b6a MS |
720 | /* |
721 | * Range check input... | |
722 | */ | |
723 | ||
969307f0 MS |
724 | DEBUG_printf(("_cupsSNMPWrite(fd=%d, address=%p, version=%d, " |
725 | "community=\"%s\", request_type=%d, request_id=%u, oid=%p)\n", | |
726 | fd, address, version, community ? community : "(null)", | |
727 | request_type, request_id, oid)); | |
728 | ||
ac884b6a MS |
729 | if (fd < 0 || !address || version != CUPS_SNMP_VERSION_1 || !community || |
730 | (request_type != CUPS_ASN1_GET_REQUEST && | |
731 | request_type != CUPS_ASN1_GET_NEXT_REQUEST) || request_id < 1 || !oid) | |
969307f0 MS |
732 | { |
733 | DEBUG_puts("_cupsSNMPWrite: Returning 0 (bad arguments)"); | |
734 | ||
ac884b6a | 735 | return (0); |
969307f0 | 736 | } |
ac884b6a | 737 | |
91c84a35 MS |
738 | /* |
739 | * Create the SNMP message... | |
740 | */ | |
741 | ||
742 | memset(&packet, 0, sizeof(packet)); | |
743 | ||
744 | packet.version = version; | |
745 | packet.request_type = request_type; | |
746 | packet.request_id = request_id; | |
747 | packet.object_type = CUPS_ASN1_NULL_VALUE; | |
748 | ||
749 | strlcpy(packet.community, community, sizeof(packet.community)); | |
750 | ||
ac884b6a | 751 | for (i = 0; oid[i] >= 0 && i < (CUPS_SNMP_MAX_OID - 1); i ++) |
91c84a35 | 752 | packet.object_name[i] = oid[i]; |
ac884b6a MS |
753 | packet.object_name[i] = -1; |
754 | ||
755 | if (oid[i] >= 0) | |
756 | { | |
969307f0 MS |
757 | DEBUG_puts("_cupsSNMPWrite: Returning 0 (OID too big)"); |
758 | ||
ac884b6a MS |
759 | errno = E2BIG; |
760 | return (0); | |
761 | } | |
91c84a35 MS |
762 | |
763 | bytes = asn1_encode_snmp(buffer, sizeof(buffer), &packet); | |
764 | ||
765 | if (bytes < 0) | |
766 | { | |
969307f0 MS |
767 | DEBUG_puts("_cupsSNMPWrite: Returning 0 (request too big)"); |
768 | ||
91c84a35 | 769 | errno = E2BIG; |
91c84a35 MS |
770 | return (0); |
771 | } | |
772 | ||
773 | asn1_debug("DEBUG: OUT ", buffer, bytes, 0); | |
774 | ||
775 | /* | |
776 | * Send the message... | |
777 | */ | |
778 | ||
779 | #ifdef AF_INET6 | |
780 | if (address->addr.sa_family == AF_INET6) | |
781 | address->ipv6.sin6_port = htons(CUPS_SNMP_PORT); | |
782 | else | |
783 | #endif /* AF_INET6 */ | |
784 | address->ipv4.sin_port = htons(CUPS_SNMP_PORT); | |
785 | ||
786 | return (sendto(fd, buffer, bytes, 0, (void *)address, | |
787 | httpAddrLength(address)) == bytes); | |
788 | } | |
789 | ||
790 | ||
ac884b6a MS |
791 | /* |
792 | * 'asn1_debug()' - Decode an ASN1-encoded message. | |
793 | */ | |
794 | ||
795 | static void | |
796 | asn1_debug(const char *prefix, /* I - Prefix string */ | |
797 | unsigned char *buffer, /* I - Buffer */ | |
798 | size_t len, /* I - Length of buffer */ | |
799 | int indent) /* I - Indentation */ | |
800 | { | |
801 | int i; /* Looping var */ | |
802 | unsigned char *bufend; /* End of buffer */ | |
803 | int integer; /* Number value */ | |
804 | int oid[CUPS_SNMP_MAX_OID]; /* OID value */ | |
805 | char string[CUPS_SNMP_MAX_STRING]; | |
806 | /* String value */ | |
807 | unsigned char value_type; /* Type of value */ | |
808 | int value_length; /* Length of value */ | |
809 | _cups_globals_t *cg = _cupsGlobals(); /* Global data */ | |
810 | ||
811 | ||
812 | if (cg->snmp_debug <= 0) | |
813 | return; | |
814 | ||
815 | if (cg->snmp_debug > 1 && indent == 0) | |
816 | { | |
817 | /* | |
818 | * Do a hex dump of the packet... | |
819 | */ | |
820 | ||
821 | int j; | |
822 | ||
823 | fprintf(stderr, "%sHex Dump (%d bytes):\n", prefix, (int)len); | |
824 | ||
825 | for (i = 0; i < len; i += 16) | |
826 | { | |
827 | fprintf(stderr, "%s%04x:", prefix, i); | |
828 | ||
829 | for (j = 0; j < 16 && (i + j) < len; j ++) | |
830 | { | |
831 | if (j && !(j & 3)) | |
832 | fprintf(stderr, " %02x", buffer[i + j]); | |
833 | else | |
834 | fprintf(stderr, " %02x", buffer[i + j]); | |
835 | } | |
836 | ||
837 | while (j < 16) | |
838 | { | |
839 | if (j && !(j & 3)) | |
840 | fputs(" ", stderr); | |
841 | else | |
842 | fputs(" ", stderr); | |
843 | ||
844 | j ++; | |
845 | } | |
846 | ||
847 | fputs(" ", stderr); | |
848 | ||
849 | for (j = 0; j < 16 && (i + j) < len; j ++) | |
850 | if (buffer[i + j] < ' ' || buffer[i + j] >= 0x7f) | |
851 | putc('.', stderr); | |
852 | else | |
853 | putc(buffer[i + j], stderr); | |
854 | ||
855 | putc('\n', stderr); | |
856 | } | |
857 | } | |
858 | ||
859 | if (indent == 0) | |
860 | fprintf(stderr, "%sMessage:\n", prefix); | |
861 | ||
862 | bufend = buffer + len; | |
863 | ||
864 | while (buffer < bufend) | |
865 | { | |
866 | /* | |
867 | * Get value type... | |
868 | */ | |
869 | ||
870 | value_type = asn1_get_type(&buffer, bufend); | |
871 | value_length = asn1_get_length(&buffer, bufend); | |
872 | ||
873 | switch (value_type) | |
874 | { | |
875 | case CUPS_ASN1_BOOLEAN : | |
876 | integer = asn1_get_integer(&buffer, bufend, value_length); | |
877 | ||
878 | fprintf(stderr, "%s%*sBOOLEAN %d bytes %d\n", prefix, indent, "", | |
879 | value_length, integer); | |
880 | break; | |
881 | ||
882 | case CUPS_ASN1_INTEGER : | |
883 | integer = asn1_get_integer(&buffer, bufend, value_length); | |
884 | ||
885 | fprintf(stderr, "%s%*sINTEGER %d bytes %d\n", prefix, indent, "", | |
886 | value_length, integer); | |
887 | break; | |
888 | ||
889 | case CUPS_ASN1_COUNTER : | |
890 | integer = asn1_get_integer(&buffer, bufend, value_length); | |
891 | ||
892 | fprintf(stderr, "%s%*sCOUNTER %d bytes %u\n", prefix, indent, "", | |
893 | value_length, (unsigned)integer); | |
894 | break; | |
895 | ||
896 | case CUPS_ASN1_GAUGE : | |
897 | integer = asn1_get_integer(&buffer, bufend, value_length); | |
898 | ||
899 | fprintf(stderr, "%s%*sGAUGE %d bytes %u\n", prefix, indent, "", | |
900 | value_length, (unsigned)integer); | |
901 | break; | |
902 | ||
903 | case CUPS_ASN1_TIMETICKS : | |
904 | integer = asn1_get_integer(&buffer, bufend, value_length); | |
905 | ||
906 | fprintf(stderr, "%s%*sTIMETICKS %d bytes %u\n", prefix, indent, "", | |
907 | value_length, (unsigned)integer); | |
908 | break; | |
909 | ||
910 | case CUPS_ASN1_OCTET_STRING : | |
911 | fprintf(stderr, "%s%*sOCTET STRING %d bytes \"%s\"\n", prefix, | |
912 | indent, "", value_length, | |
913 | asn1_get_string(&buffer, bufend, value_length, string, | |
914 | sizeof(string))); | |
915 | break; | |
916 | ||
917 | case CUPS_ASN1_HEX_STRING : | |
918 | asn1_get_string(&buffer, bufend, value_length, string, | |
919 | sizeof(string)); | |
920 | fprintf(stderr, "%s%*sHex-STRING %d bytes", prefix, | |
921 | indent, "", value_length); | |
922 | for (i = 0; i < value_length; i ++) | |
923 | fprintf(stderr, " %02X", string[i] & 255); | |
924 | putc('\n', stderr); | |
925 | break; | |
926 | ||
927 | case CUPS_ASN1_NULL_VALUE : | |
928 | fprintf(stderr, "%s%*sNULL VALUE %d bytes\n", prefix, indent, "", | |
929 | value_length); | |
930 | ||
931 | buffer += value_length; | |
932 | break; | |
933 | ||
934 | case CUPS_ASN1_OID : | |
935 | integer = asn1_get_oid(&buffer, bufend, value_length, oid, | |
936 | CUPS_SNMP_MAX_OID); | |
937 | ||
938 | fprintf(stderr, "%s%*sOID %d bytes ", prefix, indent, "", | |
939 | value_length); | |
940 | for (i = 0; i < integer; i ++) | |
941 | fprintf(stderr, ".%d", oid[i]); | |
942 | putc('\n', stderr); | |
943 | break; | |
944 | ||
945 | case CUPS_ASN1_SEQUENCE : | |
946 | fprintf(stderr, "%s%*sSEQUENCE %d bytes\n", prefix, indent, "", | |
947 | value_length); | |
948 | asn1_debug(prefix, buffer, value_length, indent + 4); | |
949 | ||
950 | buffer += value_length; | |
951 | break; | |
952 | ||
953 | case CUPS_ASN1_GET_NEXT_REQUEST : | |
954 | fprintf(stderr, "%s%*sGet-Next-Request-PDU %d bytes\n", prefix, | |
955 | indent, "", value_length); | |
956 | asn1_debug(prefix, buffer, value_length, indent + 4); | |
957 | ||
958 | buffer += value_length; | |
959 | break; | |
960 | ||
961 | case CUPS_ASN1_GET_REQUEST : | |
962 | fprintf(stderr, "%s%*sGet-Request-PDU %d bytes\n", prefix, indent, "", | |
963 | value_length); | |
964 | asn1_debug(prefix, buffer, value_length, indent + 4); | |
965 | ||
966 | buffer += value_length; | |
967 | break; | |
968 | ||
969 | case CUPS_ASN1_GET_RESPONSE : | |
970 | fprintf(stderr, "%s%*sGet-Response-PDU %d bytes\n", prefix, indent, | |
971 | "", value_length); | |
972 | asn1_debug(prefix, buffer, value_length, indent + 4); | |
973 | ||
974 | buffer += value_length; | |
975 | break; | |
976 | ||
977 | default : | |
978 | fprintf(stderr, "%s%*sUNKNOWN(%x) %d bytes\n", prefix, indent, "", | |
979 | value_type, value_length); | |
980 | ||
981 | buffer += value_length; | |
982 | break; | |
983 | } | |
984 | } | |
985 | } | |
986 | ||
987 | ||
91c84a35 MS |
988 | /* |
989 | * 'asn1_decode_snmp()' - Decode a SNMP packet. | |
990 | */ | |
991 | ||
992 | static int /* O - 0 on success, -1 on error */ | |
993 | asn1_decode_snmp(unsigned char *buffer, /* I - Buffer */ | |
994 | size_t len, /* I - Size of buffer */ | |
995 | cups_snmp_t *packet) /* I - SNMP packet */ | |
996 | { | |
997 | unsigned char *bufptr, /* Pointer into the data */ | |
998 | *bufend; /* End of data */ | |
999 | int length; /* Length of value */ | |
1000 | ||
1001 | ||
1002 | /* | |
1003 | * Initialize the decoding... | |
1004 | */ | |
1005 | ||
1006 | memset(packet, 0, sizeof(cups_snmp_t)); | |
ac884b6a | 1007 | packet->object_name[0] = -1; |
91c84a35 MS |
1008 | |
1009 | bufptr = buffer; | |
1010 | bufend = buffer + len; | |
1011 | ||
1012 | if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_SEQUENCE) | |
1013 | snmp_set_error(packet, _("Packet does not start with SEQUENCE")); | |
1014 | else if (asn1_get_length(&bufptr, bufend) == 0) | |
1015 | snmp_set_error(packet, _("SEQUENCE uses indefinite length")); | |
1016 | else if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_INTEGER) | |
1017 | snmp_set_error(packet, _("No version number")); | |
1018 | else if ((length = asn1_get_length(&bufptr, bufend)) == 0) | |
1019 | snmp_set_error(packet, _("Version uses indefinite length")); | |
1020 | else if ((packet->version = asn1_get_integer(&bufptr, bufend, length)) | |
1021 | != CUPS_SNMP_VERSION_1) | |
1022 | snmp_set_error(packet, _("Bad SNMP version number")); | |
1023 | else if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_OCTET_STRING) | |
1024 | snmp_set_error(packet, _("No community name")); | |
1025 | else if ((length = asn1_get_length(&bufptr, bufend)) == 0) | |
1026 | snmp_set_error(packet, _("Community name uses indefinite length")); | |
1027 | else | |
1028 | { | |
1029 | asn1_get_string(&bufptr, bufend, length, packet->community, | |
1030 | sizeof(packet->community)); | |
1031 | ||
1032 | if ((packet->request_type = asn1_get_type(&bufptr, bufend)) | |
1033 | != CUPS_ASN1_GET_RESPONSE) | |
1034 | snmp_set_error(packet, _("Packet does not contain a Get-Response-PDU")); | |
1035 | else if (asn1_get_length(&bufptr, bufend) == 0) | |
1036 | snmp_set_error(packet, _("Get-Response-PDU uses indefinite length")); | |
1037 | else if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_INTEGER) | |
1038 | snmp_set_error(packet, _("No request-id")); | |
1039 | else if ((length = asn1_get_length(&bufptr, bufend)) == 0) | |
1040 | snmp_set_error(packet, _("request-id uses indefinite length")); | |
1041 | else | |
1042 | { | |
1043 | packet->request_id = asn1_get_integer(&bufptr, bufend, length); | |
1044 | ||
1045 | if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_INTEGER) | |
1046 | snmp_set_error(packet, _("No error-status")); | |
1047 | else if ((length = asn1_get_length(&bufptr, bufend)) == 0) | |
1048 | snmp_set_error(packet, _("error-status uses indefinite length")); | |
1049 | else | |
1050 | { | |
1051 | packet->error_status = asn1_get_integer(&bufptr, bufend, length); | |
1052 | ||
1053 | if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_INTEGER) | |
1054 | snmp_set_error(packet, _("No error-index")); | |
1055 | else if ((length = asn1_get_length(&bufptr, bufend)) == 0) | |
1056 | snmp_set_error(packet, _("error-index uses indefinite length")); | |
1057 | else | |
1058 | { | |
1059 | packet->error_index = asn1_get_integer(&bufptr, bufend, length); | |
1060 | ||
1061 | if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_SEQUENCE) | |
1062 | snmp_set_error(packet, _("No variable-bindings SEQUENCE")); | |
1063 | else if (asn1_get_length(&bufptr, bufend) == 0) | |
1064 | snmp_set_error(packet, | |
1065 | _("variable-bindings uses indefinite length")); | |
1066 | else if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_SEQUENCE) | |
1067 | snmp_set_error(packet, _("No VarBind SEQUENCE")); | |
1068 | else if (asn1_get_length(&bufptr, bufend) == 0) | |
1069 | snmp_set_error(packet, _("VarBind uses indefinite length")); | |
1070 | else if (asn1_get_type(&bufptr, bufend) != CUPS_ASN1_OID) | |
1071 | snmp_set_error(packet, _("No name OID")); | |
1072 | else if ((length = asn1_get_length(&bufptr, bufend)) == 0) | |
1073 | snmp_set_error(packet, _("Name OID uses indefinite length")); | |
1074 | else | |
1075 | { | |
1076 | asn1_get_oid(&bufptr, bufend, length, packet->object_name, | |
1077 | CUPS_SNMP_MAX_OID); | |
1078 | ||
1079 | packet->object_type = asn1_get_type(&bufptr, bufend); | |
1080 | ||
1081 | if ((length = asn1_get_length(&bufptr, bufend)) == 0 && | |
1082 | packet->object_type != CUPS_ASN1_NULL_VALUE && | |
1083 | packet->object_type != CUPS_ASN1_OCTET_STRING) | |
1084 | snmp_set_error(packet, _("Value uses indefinite length")); | |
1085 | else | |
1086 | { | |
1087 | switch (packet->object_type) | |
1088 | { | |
1089 | case CUPS_ASN1_BOOLEAN : | |
1090 | packet->object_value.boolean = | |
1091 | asn1_get_integer(&bufptr, bufend, length); | |
1092 | break; | |
1093 | ||
1094 | case CUPS_ASN1_INTEGER : | |
1095 | packet->object_value.integer = | |
1096 | asn1_get_integer(&bufptr, bufend, length); | |
1097 | break; | |
1098 | ||
1099 | case CUPS_ASN1_NULL_VALUE : | |
1100 | break; | |
1101 | ||
1102 | case CUPS_ASN1_OCTET_STRING : | |
1103 | asn1_get_string(&bufptr, bufend, length, | |
1104 | packet->object_value.string, | |
1105 | CUPS_SNMP_MAX_STRING); | |
1106 | break; | |
1107 | ||
1108 | case CUPS_ASN1_OID : | |
1109 | asn1_get_oid(&bufptr, bufend, length, | |
1110 | packet->object_value.oid, CUPS_SNMP_MAX_OID); | |
1111 | break; | |
1112 | ||
ac884b6a MS |
1113 | case CUPS_ASN1_HEX_STRING : |
1114 | packet->object_value.hex_string.num_bytes = length; | |
1115 | ||
1116 | asn1_get_string(&bufptr, bufend, length, | |
1117 | (char *)packet->object_value.hex_string.bytes, | |
1118 | CUPS_SNMP_MAX_STRING); | |
1119 | break; | |
1120 | ||
91c84a35 MS |
1121 | case CUPS_ASN1_COUNTER : |
1122 | packet->object_value.counter = | |
1123 | asn1_get_integer(&bufptr, bufend, length); | |
1124 | break; | |
1125 | ||
1126 | case CUPS_ASN1_GAUGE : | |
1127 | packet->object_value.gauge = | |
1128 | asn1_get_integer(&bufptr, bufend, length); | |
1129 | break; | |
1130 | ||
ac884b6a MS |
1131 | case CUPS_ASN1_TIMETICKS : |
1132 | packet->object_value.timeticks = | |
1133 | asn1_get_integer(&bufptr, bufend, length); | |
1134 | break; | |
1135 | ||
91c84a35 MS |
1136 | default : |
1137 | snmp_set_error(packet, _("Unsupported value type")); | |
1138 | break; | |
1139 | } | |
1140 | } | |
1141 | } | |
1142 | } | |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | return (packet->error ? -1 : 0); | |
1148 | } | |
1149 | ||
1150 | ||
91c84a35 MS |
1151 | /* |
1152 | * 'asn1_encode_snmp()' - Encode a SNMP packet. | |
1153 | */ | |
1154 | ||
1155 | static int /* O - Length on success, -1 on error */ | |
1156 | asn1_encode_snmp(unsigned char *buffer, /* I - Buffer */ | |
1157 | size_t bufsize, /* I - Size of buffer */ | |
1158 | cups_snmp_t *packet) /* I - SNMP packet */ | |
1159 | { | |
1160 | unsigned char *bufptr; /* Pointer into buffer */ | |
1161 | int total, /* Total length */ | |
1162 | msglen, /* Length of entire message */ | |
1163 | commlen, /* Length of community string */ | |
1164 | reqlen, /* Length of request */ | |
1165 | listlen, /* Length of variable list */ | |
1166 | varlen, /* Length of variable */ | |
1167 | namelen, /* Length of object name OID */ | |
1168 | valuelen; /* Length of object value */ | |
1169 | ||
1170 | ||
1171 | /* | |
1172 | * Get the lengths of the community string, OID, and message... | |
1173 | */ | |
1174 | ||
ac884b6a | 1175 | |
91c84a35 MS |
1176 | namelen = asn1_size_oid(packet->object_name); |
1177 | ||
1178 | switch (packet->object_type) | |
1179 | { | |
1180 | case CUPS_ASN1_NULL_VALUE : | |
1181 | valuelen = 0; | |
1182 | break; | |
1183 | ||
1184 | case CUPS_ASN1_BOOLEAN : | |
1185 | valuelen = asn1_size_integer(packet->object_value.boolean); | |
1186 | break; | |
1187 | ||
1188 | case CUPS_ASN1_INTEGER : | |
1189 | valuelen = asn1_size_integer(packet->object_value.integer); | |
1190 | break; | |
1191 | ||
1192 | case CUPS_ASN1_OCTET_STRING : | |
1193 | valuelen = strlen(packet->object_value.string); | |
1194 | break; | |
1195 | ||
1196 | case CUPS_ASN1_OID : | |
1197 | valuelen = asn1_size_oid(packet->object_value.oid); | |
1198 | break; | |
1199 | ||
1200 | default : | |
1201 | packet->error = "Unknown object type"; | |
1202 | return (-1); | |
1203 | } | |
1204 | ||
1205 | varlen = 1 + asn1_size_length(namelen) + namelen + | |
1206 | 1 + asn1_size_length(valuelen) + valuelen; | |
1207 | listlen = 1 + asn1_size_length(varlen) + varlen; | |
1208 | reqlen = 2 + asn1_size_integer(packet->request_id) + | |
1209 | 2 + asn1_size_integer(packet->error_status) + | |
1210 | 2 + asn1_size_integer(packet->error_index) + | |
1211 | 1 + asn1_size_length(listlen) + listlen; | |
1212 | commlen = strlen(packet->community); | |
1213 | msglen = 2 + asn1_size_integer(packet->version) + | |
1214 | 1 + asn1_size_length(commlen) + commlen + | |
1215 | 1 + asn1_size_length(reqlen) + reqlen; | |
1216 | total = 1 + asn1_size_length(msglen) + msglen; | |
1217 | ||
1218 | if (total > bufsize) | |
1219 | { | |
1220 | packet->error = "Message too large for buffer"; | |
1221 | return (-1); | |
1222 | } | |
1223 | ||
1224 | /* | |
1225 | * Then format the message... | |
1226 | */ | |
1227 | ||
1228 | bufptr = buffer; | |
1229 | ||
1230 | *bufptr++ = CUPS_ASN1_SEQUENCE; /* SNMPv1 message header */ | |
1231 | asn1_set_length(&bufptr, msglen); | |
1232 | ||
1233 | asn1_set_integer(&bufptr, packet->version); | |
1234 | /* version */ | |
1235 | ||
1236 | *bufptr++ = CUPS_ASN1_OCTET_STRING; /* community */ | |
1237 | asn1_set_length(&bufptr, commlen); | |
1238 | memcpy(bufptr, packet->community, commlen); | |
1239 | bufptr += commlen; | |
1240 | ||
ac884b6a | 1241 | *bufptr++ = packet->request_type; /* Get-Request-PDU/Get-Next-Request-PDU */ |
91c84a35 MS |
1242 | asn1_set_length(&bufptr, reqlen); |
1243 | ||
1244 | asn1_set_integer(&bufptr, packet->request_id); | |
1245 | ||
1246 | asn1_set_integer(&bufptr, packet->error_status); | |
1247 | ||
1248 | asn1_set_integer(&bufptr, packet->error_index); | |
1249 | ||
1250 | *bufptr++ = CUPS_ASN1_SEQUENCE; /* variable-bindings */ | |
1251 | asn1_set_length(&bufptr, listlen); | |
1252 | ||
1253 | *bufptr++ = CUPS_ASN1_SEQUENCE; /* variable */ | |
1254 | asn1_set_length(&bufptr, varlen); | |
1255 | ||
1256 | asn1_set_oid(&bufptr, packet->object_name); | |
1257 | /* ObjectName */ | |
1258 | ||
1259 | switch (packet->object_type) | |
1260 | { | |
1261 | case CUPS_ASN1_NULL_VALUE : | |
1262 | *bufptr++ = CUPS_ASN1_NULL_VALUE; | |
1263 | /* ObjectValue */ | |
1264 | *bufptr++ = 0; /* Length */ | |
1265 | break; | |
1266 | ||
1267 | case CUPS_ASN1_BOOLEAN : | |
1268 | asn1_set_integer(&bufptr, packet->object_value.boolean); | |
1269 | break; | |
1270 | ||
1271 | case CUPS_ASN1_INTEGER : | |
1272 | asn1_set_integer(&bufptr, packet->object_value.integer); | |
1273 | break; | |
1274 | ||
1275 | case CUPS_ASN1_OCTET_STRING : | |
1276 | *bufptr++ = CUPS_ASN1_OCTET_STRING; | |
1277 | asn1_set_length(&bufptr, valuelen); | |
1278 | memcpy(bufptr, packet->object_value.string, valuelen); | |
1279 | bufptr += valuelen; | |
1280 | break; | |
1281 | ||
1282 | case CUPS_ASN1_OID : | |
1283 | asn1_set_oid(&bufptr, packet->object_value.oid); | |
1284 | break; | |
1285 | ||
1286 | default : | |
1287 | break; | |
1288 | } | |
1289 | ||
1290 | return (bufptr - buffer); | |
1291 | } | |
1292 | ||
1293 | ||
1294 | /* | |
1295 | * 'asn1_get_integer()' - Get an integer value. | |
1296 | */ | |
1297 | ||
1298 | static int /* O - Integer value */ | |
1299 | asn1_get_integer( | |
1300 | unsigned char **buffer, /* IO - Pointer in buffer */ | |
1301 | unsigned char *bufend, /* I - End of buffer */ | |
1302 | int length) /* I - Length of value */ | |
1303 | { | |
1304 | int value; /* Integer value */ | |
1305 | ||
1306 | ||
1307 | for (value = 0; | |
1308 | length > 0 && *buffer < bufend; | |
1309 | length --, (*buffer) ++) | |
1310 | value = (value << 8) | **buffer; | |
1311 | ||
1312 | return (value); | |
1313 | } | |
1314 | ||
1315 | ||
1316 | /* | |
1317 | * 'asn1_get_length()' - Get a value length. | |
1318 | */ | |
1319 | ||
1320 | static int /* O - Length */ | |
1321 | asn1_get_length(unsigned char **buffer, /* IO - Pointer in buffer */ | |
1322 | unsigned char *bufend) /* I - End of buffer */ | |
1323 | { | |
1324 | int length; /* Length */ | |
1325 | ||
1326 | ||
1327 | length = **buffer; | |
1328 | (*buffer) ++; | |
1329 | ||
1330 | if (length & 128) | |
1331 | length = asn1_get_integer(buffer, bufend, length & 127); | |
1332 | ||
1333 | return (length); | |
1334 | } | |
1335 | ||
1336 | ||
1337 | /* | |
1338 | * 'asn1_get_oid()' - Get an OID value. | |
1339 | */ | |
1340 | ||
ac884b6a | 1341 | static int /* O - Number of OIDs */ |
91c84a35 MS |
1342 | asn1_get_oid( |
1343 | unsigned char **buffer, /* IO - Pointer in buffer */ | |
1344 | unsigned char *bufend, /* I - End of buffer */ | |
1345 | int length, /* I - Length of value */ | |
1346 | int *oid, /* I - OID buffer */ | |
1347 | int oidsize) /* I - Size of OID buffer */ | |
1348 | { | |
1349 | unsigned char *valend; /* End of value */ | |
ac884b6a MS |
1350 | int *oidptr, /* Current OID */ |
1351 | *oidend; /* End of OID buffer */ | |
91c84a35 MS |
1352 | int number; /* OID number */ |
1353 | ||
1354 | ||
1355 | valend = *buffer + length; | |
ac884b6a | 1356 | oidptr = oid; |
91c84a35 MS |
1357 | oidend = oid + oidsize - 1; |
1358 | ||
1359 | if (valend > bufend) | |
1360 | valend = bufend; | |
1361 | ||
1362 | number = asn1_get_packed(buffer, bufend); | |
1363 | ||
1364 | if (number < 80) | |
1365 | { | |
ac884b6a MS |
1366 | *oidptr++ = number / 40; |
1367 | number = number % 40; | |
1368 | *oidptr++ = number; | |
91c84a35 MS |
1369 | } |
1370 | else | |
1371 | { | |
ac884b6a MS |
1372 | *oidptr++ = 2; |
1373 | number -= 80; | |
1374 | *oidptr++ = number; | |
91c84a35 MS |
1375 | } |
1376 | ||
1377 | while (*buffer < valend) | |
1378 | { | |
1379 | number = asn1_get_packed(buffer, bufend); | |
1380 | ||
ac884b6a MS |
1381 | if (oidptr < oidend) |
1382 | *oidptr++ = number; | |
91c84a35 MS |
1383 | } |
1384 | ||
ac884b6a | 1385 | *oidptr = -1; |
91c84a35 | 1386 | |
ac884b6a | 1387 | return (oidptr - oid); |
91c84a35 MS |
1388 | } |
1389 | ||
1390 | ||
1391 | /* | |
1392 | * 'asn1_get_packed()' - Get a packed integer value. | |
1393 | */ | |
1394 | ||
1395 | static int /* O - Value */ | |
1396 | asn1_get_packed( | |
1397 | unsigned char **buffer, /* IO - Pointer in buffer */ | |
1398 | unsigned char *bufend) /* I - End of buffer */ | |
1399 | { | |
1400 | int value; /* Value */ | |
1401 | ||
1402 | ||
1403 | value = 0; | |
1404 | ||
1405 | while ((**buffer & 128) && *buffer < bufend) | |
1406 | { | |
1407 | value = (value << 7) | (**buffer & 127); | |
1408 | (*buffer) ++; | |
1409 | } | |
1410 | ||
1411 | if (*buffer < bufend) | |
1412 | { | |
1413 | value = (value << 7) | **buffer; | |
1414 | (*buffer) ++; | |
1415 | } | |
1416 | ||
1417 | return (value); | |
1418 | } | |
1419 | ||
1420 | ||
1421 | /* | |
1422 | * 'asn1_get_string()' - Get a string value. | |
1423 | */ | |
1424 | ||
1425 | static char * /* O - String */ | |
1426 | asn1_get_string( | |
1427 | unsigned char **buffer, /* IO - Pointer in buffer */ | |
1428 | unsigned char *bufend, /* I - End of buffer */ | |
1429 | int length, /* I - Value length */ | |
1430 | char *string, /* I - String buffer */ | |
1431 | int strsize) /* I - String buffer size */ | |
1432 | { | |
1433 | if (length < 0) | |
1434 | { | |
1435 | /* | |
1436 | * Disallow negative lengths! | |
1437 | */ | |
1438 | ||
1439 | *string = '\0'; | |
1440 | } | |
1441 | else if (length < strsize) | |
1442 | { | |
1443 | /* | |
1444 | * String is smaller than the buffer... | |
1445 | */ | |
1446 | ||
1447 | if (length > 0) | |
1448 | memcpy(string, *buffer, length); | |
1449 | ||
1450 | string[length] = '\0'; | |
1451 | } | |
1452 | else | |
1453 | { | |
1454 | /* | |
1455 | * String is larger than the buffer... | |
1456 | */ | |
1457 | ||
1458 | memcpy(string, *buffer, strsize - 1); | |
1459 | string[strsize - 1] = '\0'; | |
1460 | } | |
1461 | ||
1462 | if (length > 0) | |
1463 | (*buffer) += length; | |
1464 | ||
1465 | return (length < 0 ? NULL : string); | |
1466 | } | |
1467 | ||
1468 | ||
1469 | /* | |
1470 | * 'asn1_get_type()' - Get a value type. | |
1471 | */ | |
1472 | ||
1473 | static int /* O - Type */ | |
1474 | asn1_get_type(unsigned char **buffer, /* IO - Pointer in buffer */ | |
1475 | unsigned char *bufend) /* I - End of buffer */ | |
1476 | { | |
1477 | int type; /* Type */ | |
1478 | ||
1479 | ||
1480 | type = **buffer; | |
1481 | (*buffer) ++; | |
1482 | ||
1483 | if ((type & 31) == 31) | |
1484 | type = asn1_get_packed(buffer, bufend); | |
1485 | ||
1486 | return (type); | |
1487 | } | |
1488 | ||
1489 | ||
1490 | /* | |
1491 | * 'asn1_set_integer()' - Set an integer value. | |
1492 | */ | |
1493 | ||
1494 | static void | |
1495 | asn1_set_integer(unsigned char **buffer,/* IO - Pointer in buffer */ | |
1496 | int integer) /* I - Integer value */ | |
1497 | { | |
1498 | **buffer = CUPS_ASN1_INTEGER; | |
1499 | (*buffer) ++; | |
1500 | ||
1501 | if (integer > 0x7fffff || integer < -0x800000) | |
1502 | { | |
1503 | **buffer = 4; | |
1504 | (*buffer) ++; | |
1505 | **buffer = integer >> 24; | |
1506 | (*buffer) ++; | |
1507 | **buffer = integer >> 16; | |
1508 | (*buffer) ++; | |
1509 | **buffer = integer >> 8; | |
1510 | (*buffer) ++; | |
1511 | **buffer = integer; | |
1512 | (*buffer) ++; | |
1513 | } | |
1514 | else if (integer > 0x7fff || integer < -0x8000) | |
1515 | { | |
1516 | **buffer = 3; | |
1517 | (*buffer) ++; | |
1518 | **buffer = integer >> 16; | |
1519 | (*buffer) ++; | |
1520 | **buffer = integer >> 8; | |
1521 | (*buffer) ++; | |
1522 | **buffer = integer; | |
1523 | (*buffer) ++; | |
1524 | } | |
1525 | else if (integer > 0x7f || integer < -0x80) | |
1526 | { | |
1527 | **buffer = 2; | |
1528 | (*buffer) ++; | |
1529 | **buffer = integer >> 8; | |
1530 | (*buffer) ++; | |
1531 | **buffer = integer; | |
1532 | (*buffer) ++; | |
1533 | } | |
1534 | else | |
1535 | { | |
1536 | **buffer = 1; | |
1537 | (*buffer) ++; | |
1538 | **buffer = integer; | |
1539 | (*buffer) ++; | |
1540 | } | |
1541 | } | |
1542 | ||
1543 | ||
1544 | /* | |
1545 | * 'asn1_set_length()' - Set a value length. | |
1546 | */ | |
1547 | ||
1548 | static void | |
1549 | asn1_set_length(unsigned char **buffer, /* IO - Pointer in buffer */ | |
1550 | int length) /* I - Length value */ | |
1551 | { | |
1552 | if (length > 255) | |
1553 | { | |
1554 | **buffer = 0x82; /* 2-byte length */ | |
1555 | (*buffer) ++; | |
1556 | **buffer = length >> 8; | |
1557 | (*buffer) ++; | |
1558 | **buffer = length; | |
1559 | (*buffer) ++; | |
1560 | } | |
1561 | else if (length > 127) | |
1562 | { | |
1563 | **buffer = 0x81; /* 1-byte length */ | |
1564 | (*buffer) ++; | |
1565 | **buffer = length; | |
1566 | (*buffer) ++; | |
1567 | } | |
1568 | else | |
1569 | { | |
1570 | **buffer = length; /* Length */ | |
1571 | (*buffer) ++; | |
1572 | } | |
1573 | } | |
1574 | ||
1575 | ||
1576 | /* | |
1577 | * 'asn1_set_oid()' - Set an OID value. | |
1578 | */ | |
1579 | ||
1580 | static void | |
1581 | asn1_set_oid(unsigned char **buffer, /* IO - Pointer in buffer */ | |
1582 | const int *oid) /* I - OID value */ | |
1583 | { | |
1584 | **buffer = CUPS_ASN1_OID; | |
1585 | (*buffer) ++; | |
1586 | ||
1587 | asn1_set_length(buffer, asn1_size_oid(oid)); | |
1588 | ||
ac884b6a MS |
1589 | if (oid[1] < 0) |
1590 | { | |
1591 | asn1_set_packed(buffer, oid[0] * 40); | |
1592 | return; | |
1593 | } | |
1594 | ||
91c84a35 MS |
1595 | asn1_set_packed(buffer, oid[0] * 40 + oid[1]); |
1596 | ||
ac884b6a | 1597 | for (oid += 2; *oid >= 0; oid ++) |
91c84a35 MS |
1598 | asn1_set_packed(buffer, *oid); |
1599 | } | |
1600 | ||
1601 | ||
1602 | /* | |
1603 | * 'asn1_set_packed()' - Set a packed integer value. | |
1604 | */ | |
1605 | ||
1606 | static void | |
1607 | asn1_set_packed(unsigned char **buffer, /* IO - Pointer in buffer */ | |
1608 | int integer) /* I - Integer value */ | |
1609 | { | |
1610 | if (integer > 0xfffffff) | |
1611 | { | |
ac884b6a | 1612 | **buffer = ((integer >> 28) & 0x7f) | 0x80; |
91c84a35 MS |
1613 | (*buffer) ++; |
1614 | } | |
1615 | ||
1616 | if (integer > 0x1fffff) | |
1617 | { | |
ac884b6a | 1618 | **buffer = ((integer >> 21) & 0x7f) | 0x80; |
91c84a35 MS |
1619 | (*buffer) ++; |
1620 | } | |
1621 | ||
1622 | if (integer > 0x3fff) | |
1623 | { | |
ac884b6a | 1624 | **buffer = ((integer >> 14) & 0x7f) | 0x80; |
91c84a35 MS |
1625 | (*buffer) ++; |
1626 | } | |
1627 | ||
1628 | if (integer > 0x7f) | |
1629 | { | |
ac884b6a | 1630 | **buffer = ((integer >> 7) & 0x7f) | 0x80; |
91c84a35 MS |
1631 | (*buffer) ++; |
1632 | } | |
1633 | ||
1634 | **buffer = integer & 0x7f; | |
1635 | (*buffer) ++; | |
1636 | } | |
1637 | ||
1638 | ||
1639 | /* | |
1640 | * 'asn1_size_integer()' - Figure out the number of bytes needed for an | |
1641 | * integer value. | |
1642 | */ | |
1643 | ||
1644 | static int /* O - Size in bytes */ | |
1645 | asn1_size_integer(int integer) /* I - Integer value */ | |
1646 | { | |
1647 | if (integer > 0x7fffff || integer < -0x800000) | |
1648 | return (4); | |
1649 | else if (integer > 0x7fff || integer < -0x8000) | |
1650 | return (3); | |
1651 | else if (integer > 0x7f || integer < -0x80) | |
1652 | return (2); | |
1653 | else | |
1654 | return (1); | |
1655 | } | |
1656 | ||
1657 | ||
1658 | /* | |
1659 | * 'asn1_size_length()' - Figure out the number of bytes needed for a | |
1660 | * length value. | |
1661 | */ | |
1662 | ||
1663 | static int /* O - Size in bytes */ | |
1664 | asn1_size_length(int length) /* I - Length value */ | |
1665 | { | |
1666 | if (length > 0xff) | |
1667 | return (3); | |
1668 | else if (length > 0x7f) | |
1669 | return (2); | |
1670 | else | |
1671 | return (1); | |
1672 | } | |
1673 | ||
1674 | ||
1675 | /* | |
1676 | * 'asn1_size_oid()' - Figure out the numebr of bytes needed for an | |
1677 | * OID value. | |
1678 | */ | |
1679 | ||
1680 | static int /* O - Size in bytes */ | |
1681 | asn1_size_oid(const int *oid) /* I - OID value */ | |
1682 | { | |
1683 | int length; /* Length of value */ | |
1684 | ||
1685 | ||
ac884b6a MS |
1686 | if (oid[1] < 0) |
1687 | return (asn1_size_packed(oid[0] * 40)); | |
1688 | ||
1689 | for (length = asn1_size_packed(oid[0] * 40 + oid[1]), oid += 2; | |
1690 | *oid >= 0; | |
1691 | oid ++) | |
91c84a35 MS |
1692 | length += asn1_size_packed(*oid); |
1693 | ||
1694 | return (length); | |
1695 | } | |
1696 | ||
1697 | ||
1698 | /* | |
1699 | * 'asn1_size_packed()' - Figure out the number of bytes needed for a | |
1700 | * packed integer value. | |
1701 | */ | |
1702 | ||
1703 | static int /* O - Size in bytes */ | |
1704 | asn1_size_packed(int integer) /* I - Integer value */ | |
1705 | { | |
1706 | if (integer > 0xfffffff) | |
1707 | return (5); | |
1708 | else if (integer > 0x1fffff) | |
1709 | return (4); | |
1710 | else if (integer > 0x3fff) | |
1711 | return (3); | |
1712 | else if (integer > 0x7f) | |
1713 | return (2); | |
1714 | else | |
1715 | return (1); | |
1716 | } | |
1717 | ||
1718 | ||
1719 | /* | |
1720 | * 'snmp_set_error()' - Set the localized error for a packet. | |
1721 | */ | |
1722 | ||
1723 | static void | |
1724 | snmp_set_error(cups_snmp_t *packet, /* I - Packet */ | |
1725 | const char *message) /* I - Error message */ | |
1726 | { | |
1727 | _cups_globals_t *cg = _cupsGlobals(); /* Global data */ | |
1728 | ||
1729 | ||
1730 | if (!cg->lang_default) | |
1731 | cg->lang_default = cupsLangDefault(); | |
1732 | ||
1733 | packet->error = _cupsLangString(cg->lang_default, message); | |
1734 | } | |
1735 | ||
1736 | ||
1737 | /* | |
1738 | * End of "$Id$". | |
1739 | */ |